mirror of
https://github.com/jxxghp/MoviePilot.git
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685 lines
24 KiB
Python
685 lines
24 KiB
Python
"""检测关键 async 路径中新引入的直接阻塞调用。"""
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from __future__ import annotations
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import argparse
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import ast
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import json
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from collections import Counter
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from collections.abc import Iterator, Sequence
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from dataclasses import dataclass
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from pathlib import Path
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PROJECT_ROOT = Path(__file__).resolve().parents[2]
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DEFAULT_BASELINE = PROJECT_ROOT / "tests/fixtures/architecture/async-blocking-baseline.json"
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SCAN_ROOTS = (
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"app/adapters",
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"app/api",
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"app/agent",
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"app/application",
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"app/chain",
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"app/db",
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"app/doctor",
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"app/domain",
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"app/foundation",
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"app/monitor",
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"app/modules",
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"app/runtime",
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"app/schemas",
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"app/startup",
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"app/workflow",
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"app/cli.py",
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"app/command.py",
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"app/factory.py",
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"app/main.py",
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"app/scheduler",
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)
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_SYNC_HTTP_METHODS = {
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"delete_res",
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"get",
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"get_json",
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"get_res",
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"get_stream",
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"post",
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"post_json",
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"post_res",
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"put",
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"put_res",
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"request",
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"response_manager",
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}
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_REQUESTS_METHODS = {
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"delete",
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"get",
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"head",
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"patch",
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"post",
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"put",
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"request",
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}
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_PATH_IO_METHODS = {
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"exists",
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"glob",
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"is_dir",
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"is_file",
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"iterdir",
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"mkdir",
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"open",
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"read_bytes",
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"read_text",
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"rename",
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"rglob",
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"stat",
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"unlink",
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"write_bytes",
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"write_text",
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}
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_SHUTIL_METHODS = {
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"copy",
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"copyfile",
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"copytree",
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"make_archive",
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"move",
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"rmtree",
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"unpack_archive",
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"which",
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}
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_SUBPROCESS_METHODS = {
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"Popen",
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"call",
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"check_call",
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"check_output",
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"run",
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}
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_OS_IO_METHODS = {"listdir", "scandir", "walk"}
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_SYSTEM_CONFIG_MEMORY_READS = {
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"app.db.oper.SystemConfigOper.all",
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"app.db.oper.SystemConfigOper.get",
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"app.db.oper.systemconfig.SystemConfigOper.all",
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"app.db.oper.systemconfig.SystemConfigOper.get",
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}
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@dataclass(frozen=True)
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class _Binding:
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"""描述由明确 import 或局部赋值建立的符号来源。"""
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family: str
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qualified_name: str
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kind: str = "module"
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_UNKNOWN_BINDING = _Binding("unknown", "", "unknown")
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_BLOCKING_FAMILIES = {
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"os",
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"requests",
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"shutil",
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"subprocess",
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"sync_http",
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"sync_oper",
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"sync_path",
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"time",
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}
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def _binding_for_qualified(qualified_name: str) -> _Binding:
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"""按稳定模块路径识别门禁关心的符号族。"""
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if qualified_name == "app.adapters.network.http.RequestUtils":
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return _Binding("sync_http", qualified_name, "class")
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if qualified_name == "app.adapters.network.http.AsyncRequestUtils":
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return _Binding("async_http", qualified_name, "class")
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if qualified_name in {"requests.Session", "requests.sessions.Session"}:
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return _Binding("sync_http", qualified_name, "class")
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if qualified_name == "pathlib.Path":
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return _Binding("sync_path", qualified_name, "class")
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if qualified_name == "anyio.Path":
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return _Binding("async_path", qualified_name, "class")
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if qualified_name.startswith("app.db.oper.") and qualified_name.endswith("Oper"):
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return _Binding("sync_oper", qualified_name, "class")
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if qualified_name.startswith("requests."):
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return _Binding("requests", qualified_name, "callable")
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if qualified_name.startswith("shutil."):
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return _Binding("shutil", qualified_name, "callable")
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if qualified_name.startswith("subprocess."):
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return _Binding("subprocess", qualified_name, "callable")
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if qualified_name.startswith("os."):
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return _Binding("os", qualified_name, "callable")
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if qualified_name.startswith("time."):
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return _Binding("time", qualified_name, "callable")
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return _Binding("module", qualified_name)
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def _resolve_binding(
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expression: ast.expr,
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bindings: dict[str, _Binding],
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) -> _Binding | None:
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"""解析明确 import、构造、属性访问和简单路径派生。"""
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if isinstance(expression, ast.Name):
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return bindings.get(expression.id)
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if isinstance(expression, ast.Attribute):
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base = _resolve_binding(expression.value, bindings)
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if not base or base.kind in {"collection", "unknown"}:
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return None
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qualified_name = f"{base.qualified_name}.{expression.attr}"
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if base.kind == "module":
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return _binding_for_qualified(qualified_name)
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return _Binding(base.family, qualified_name, "callable")
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if isinstance(expression, ast.Call):
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target = _resolve_binding(expression.func, bindings)
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if target and target.kind == "class":
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return _Binding(target.family, target.qualified_name, "instance")
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return None
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if isinstance(expression, ast.BinOp) and isinstance(expression.op, ast.Div):
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left = _resolve_binding(expression.left, bindings)
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if left and left.family in {"async_path", "sync_path"}:
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return left
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if isinstance(expression, ast.IfExp):
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return _merge_binding_options(
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"",
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(
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_resolve_binding(expression.body, bindings),
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_resolve_binding(expression.orelse, bindings),
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),
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)
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return None
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def _merge_binding_options(
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name: str,
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options: Sequence[_Binding | None],
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) -> _Binding | None:
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"""控制流合流时保留任一分支可能进入的同步阻塞类型。"""
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if options and all(option == options[0] for option in options):
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return options[0]
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blocking = sorted(
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(
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option
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for option in options
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if option and option.family in _BLOCKING_FAMILIES
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),
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key=lambda item: (item.family, item.qualified_name, item.kind),
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)
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if blocking:
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return blocking[0]
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if name == "open" and any(option is None for option in options):
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return None
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return _UNKNOWN_BINDING
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def _merge_binding_states(
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states: Sequence[dict[str, _Binding]],
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) -> dict[str, _Binding]:
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"""合并互斥控制流的局部符号表。"""
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names = set().union(*(state.keys() for state in states))
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merged: dict[str, _Binding] = {}
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for name in names:
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binding = _merge_binding_options(name, tuple(state.get(name) for state in states))
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if binding:
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merged[name] = binding
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return merged
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def _load_oper_methods(root: Path) -> dict[str, set[str]]:
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"""从 Oper 源码建立同步方法索引，避免按方法名猜测数据库调用。"""
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methods: dict[str, set[str]] = {}
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oper_root = root / "app/db/oper"
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if not oper_root.is_dir():
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return methods
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for path in sorted(oper_root.glob("*.py")):
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tree = ast.parse(path.read_text(encoding="utf-8"), filename=str(path))
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module = ".".join(path.relative_to(root).with_suffix("").parts)
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for node in tree.body:
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if not isinstance(node, ast.ClassDef) or not node.name.endswith("Oper"):
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continue
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qualified_name = f"{module}.{node.name}"
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sync_methods = {
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child.name
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for child in node.body
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if isinstance(child, ast.FunctionDef)
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and not child.name.startswith("__")
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}
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methods[qualified_name] = sync_methods
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methods[f"app.db.oper.{node.name}"] = sync_methods
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return methods
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class _ImportCollector(ast.NodeVisitor):
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"""收集模块级 import，作为每个 async 函数的初始符号表。"""
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def __init__(self) -> None:
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self.bindings: dict[str, _Binding] = {}
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def visit_Import(self, node: ast.Import) -> None:
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for alias in node.names:
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local_name = alias.asname or alias.name.split(".", 1)[0]
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qualified_name = alias.name if alias.asname else local_name
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self.bindings[local_name] = _binding_for_qualified(qualified_name)
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def visit_ImportFrom(self, node: ast.ImportFrom) -> None:
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if node.level or not node.module:
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return
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for alias in node.names:
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if alias.name == "*":
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continue
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local_name = alias.asname or alias.name
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qualified_name = f"{node.module}.{alias.name}"
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self.bindings[local_name] = _binding_for_qualified(qualified_name)
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def _bind_target(self, target: ast.expr, binding: _Binding | None) -> None:
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if isinstance(target, ast.Name):
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self.bindings[target.id] = binding or _UNKNOWN_BINDING
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elif isinstance(target, (ast.Tuple, ast.List)):
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for element in target.elts:
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self._bind_target(element, None)
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def visit_Assign(self, node: ast.Assign) -> None:
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binding = _resolve_binding(node.value, self.bindings)
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for target in node.targets:
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self._bind_target(target, binding)
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def visit_AnnAssign(self, node: ast.AnnAssign) -> None:
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binding = _resolve_binding(node.value, self.bindings) if node.value else None
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self._bind_target(node.target, binding)
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def visit_FunctionDef(self, node: ast.FunctionDef) -> None:
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return
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def visit_AsyncFunctionDef(self, node: ast.AsyncFunctionDef) -> None:
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return
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def visit_ClassDef(self, node: ast.ClassDef) -> None:
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return
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class _AsyncCallVisitor(ast.NodeVisitor):
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"""用局部符号传播识别一个 async 函数直接执行的阻塞调用。"""
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def __init__(
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self,
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function: ast.FunctionDef | ast.AsyncFunctionDef,
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module_bindings: dict[str, _Binding],
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oper_methods: dict[str, set[str]],
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*,
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record_calls: bool,
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) -> None:
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self.calls: Counter[str] = Counter()
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self.nested_functions: list[
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tuple[ast.FunctionDef | ast.AsyncFunctionDef, dict[str, _Binding]]
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] = []
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self._bindings = dict(module_bindings)
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self._oper_methods = oper_methods
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self._record_calls = record_calls
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self._bind_arguments(function)
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def _bind_arguments(
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self,
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function: ast.FunctionDef | ast.AsyncFunctionDef,
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) -> None:
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arguments = (
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*function.args.posonlyargs,
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*function.args.args,
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*function.args.kwonlyargs,
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)
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for argument in arguments:
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binding = self._annotation_binding(argument.annotation)
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if binding:
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self._bindings[argument.arg] = binding
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else:
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self._bindings[argument.arg] = _UNKNOWN_BINDING
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def _annotation_binding(self, annotation: ast.expr | None) -> _Binding | None:
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if annotation is None:
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return None
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if isinstance(annotation, ast.Subscript):
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container = ast.unparse(annotation.value).rsplit(".", 1)[-1]
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elements = (
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annotation.slice.elts
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if isinstance(annotation.slice, ast.Tuple)
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else (annotation.slice,)
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)
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for element in elements:
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binding = self._annotation_binding(element)
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if not binding:
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continue
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if container in {"list", "List", "Sequence", "set", "tuple"}:
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return _Binding(
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binding.family,
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binding.qualified_name,
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"collection",
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)
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if container in {"Annotated", "Optional", "Union"}:
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return binding
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return None
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if isinstance(annotation, ast.BinOp) and isinstance(annotation.op, ast.BitOr):
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return self._annotation_binding(annotation.left) or self._annotation_binding(
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annotation.right
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)
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binding = _resolve_binding(annotation, self._bindings)
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if binding and binding.kind == "class":
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return _Binding(binding.family, binding.qualified_name, "instance")
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return None
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def _resolve(self, expression: ast.expr) -> _Binding | None:
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return _resolve_binding(expression, self._bindings)
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@staticmethod
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def _call_label(binding: _Binding) -> str:
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parts = binding.qualified_name.split(".")
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if binding.family == "sync_oper" and len(parts) >= 2:
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return ".".join(parts[-2:])
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if binding.family in {"async_path", "sync_path"} and parts:
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return f"Path.{parts[-1]}"
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if binding.family == "sync_http" and len(parts) >= 2:
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return ".".join(parts[-2:])
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if binding.family in {"os", "requests", "shutil", "subprocess", "time"}:
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return ".".join(parts[-2:])
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return binding.qualified_name
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def _record_call(self, node: ast.Call, binding: _Binding | None) -> None:
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if not self._record_calls:
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return
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if not binding:
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if isinstance(node.func, ast.Name) and node.func.id == "open":
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self.calls["open"] += 1
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return
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method = binding.qualified_name.rsplit(".", 1)[-1]
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blocked = False
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if binding.family == "sync_http":
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blocked = binding.kind == "callable" and method in _SYNC_HTTP_METHODS
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elif binding.family == "requests":
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blocked = method in _REQUESTS_METHODS
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elif binding.family == "sync_path":
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blocked = binding.kind == "callable" and method in _PATH_IO_METHODS
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elif binding.family == "shutil":
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blocked = method in _SHUTIL_METHODS
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elif binding.family == "subprocess":
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blocked = method in _SUBPROCESS_METHODS
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elif binding.family == "os":
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blocked = method in _OS_IO_METHODS
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elif binding.family == "time":
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blocked = method == "sleep"
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elif binding.family == "sync_oper" and binding.kind == "callable":
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class_name, method_name = binding.qualified_name.rsplit(".", 1)
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blocked = (
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method_name in self._oper_methods.get(class_name, set())
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and binding.qualified_name not in _SYSTEM_CONFIG_MEMORY_READS
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)
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if blocked:
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self.calls[self._call_label(binding)] += 1
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def _bind_target(self, target: ast.expr, binding: _Binding | None) -> None:
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if isinstance(target, ast.Name):
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self._bindings[target.id] = binding or _UNKNOWN_BINDING
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elif isinstance(target, (ast.Tuple, ast.List)):
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for element in target.elts:
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self._bind_target(element, None)
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def visit_Import(self, node: ast.Import) -> None:
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collector = _ImportCollector()
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collector.visit_Import(node)
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self._bindings.update(collector.bindings)
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def visit_ImportFrom(self, node: ast.ImportFrom) -> None:
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collector = _ImportCollector()
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collector.visit_ImportFrom(node)
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self._bindings.update(collector.bindings)
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def visit_Assign(self, node: ast.Assign) -> None:
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self.visit(node.value)
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binding = self._resolve(node.value)
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for target in node.targets:
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self._bind_target(target, binding)
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def visit_AnnAssign(self, node: ast.AnnAssign) -> None:
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if node.value:
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self.visit(node.value)
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binding = self._resolve(node.value) if node.value else None
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binding = binding or self._annotation_binding(node.annotation)
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self._bind_target(node.target, binding)
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def visit_AugAssign(self, node: ast.AugAssign) -> None:
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self.visit(node.value)
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self._bind_target(node.target, None)
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def _visit_branch(
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self,
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statements: Sequence[ast.stmt],
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initial: dict[str, _Binding],
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) -> dict[str, _Binding]:
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saved = self._bindings
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self._bindings = dict(initial)
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for statement in statements:
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self.visit(statement)
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result = self._bindings
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self._bindings = saved
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return result
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def visit_If(self, node: ast.If) -> None:
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self.visit(node.test)
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initial = dict(self._bindings)
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body = self._visit_branch(node.body, initial)
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alternate = self._visit_branch(node.orelse, initial) if node.orelse else initial
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self._bindings = _merge_binding_states((body, alternate))
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def visit_For(self, node: ast.For | ast.AsyncFor) -> None:
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self.visit(node.iter)
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initial = dict(self._bindings)
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collection = self._resolve(node.iter)
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element = (
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_Binding(collection.family, collection.qualified_name, "instance")
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if collection and collection.kind == "collection"
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else None
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)
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self._bind_target(node.target, element)
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for statement in node.body:
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self.visit(statement)
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iterated = dict(self._bindings)
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completed = self._visit_branch(node.orelse, iterated)
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self._bindings = _merge_binding_states((initial, completed))
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def visit_AsyncFor(self, node: ast.AsyncFor) -> None:
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self.visit_For(node)
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def _visit_comprehension(
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self,
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generators: Sequence[ast.comprehension],
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outputs: Sequence[ast.expr],
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) -> None:
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saved = self._bindings
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self._bindings = dict(saved)
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for generator in generators:
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self.visit(generator.iter)
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collection = self._resolve(generator.iter)
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element = (
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_Binding(collection.family, collection.qualified_name, "instance")
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||
if collection and collection.kind == "collection"
|
||
else None
|
||
)
|
||
self._bind_target(generator.target, element)
|
||
for condition in generator.ifs:
|
||
self.visit(condition)
|
||
for output in outputs:
|
||
self.visit(output)
|
||
self._bindings = saved
|
||
|
||
def visit_ListComp(self, node: ast.ListComp) -> None:
|
||
self._visit_comprehension(node.generators, (node.elt,))
|
||
|
||
def visit_SetComp(self, node: ast.SetComp) -> None:
|
||
self._visit_comprehension(node.generators, (node.elt,))
|
||
|
||
def visit_GeneratorExp(self, node: ast.GeneratorExp) -> None:
|
||
self._visit_comprehension(node.generators, (node.elt,))
|
||
|
||
def visit_DictComp(self, node: ast.DictComp) -> None:
|
||
self._visit_comprehension(node.generators, (node.key, node.value))
|
||
|
||
def visit_NamedExpr(self, node: ast.NamedExpr) -> None:
|
||
self.visit(node.value)
|
||
self._bind_target(node.target, self._resolve(node.value))
|
||
|
||
def visit_Call(self, node: ast.Call) -> None:
|
||
binding = self._resolve(node.func)
|
||
self._record_call(node, binding)
|
||
if isinstance(node.func, ast.Lambda):
|
||
self._visit_lambda_defaults(node.func)
|
||
for argument in node.args:
|
||
self.visit(argument)
|
||
for keyword in node.keywords:
|
||
self.visit(keyword.value)
|
||
self.visit(node.func.body)
|
||
return
|
||
self.generic_visit(node)
|
||
|
||
def _visit_definition_expressions(
|
||
self,
|
||
node: ast.FunctionDef | ast.AsyncFunctionDef,
|
||
) -> None:
|
||
for decorator in node.decorator_list:
|
||
self.visit(decorator)
|
||
for default in node.args.defaults:
|
||
self.visit(default)
|
||
for keyword_default in node.args.kw_defaults:
|
||
if keyword_default:
|
||
self.visit(keyword_default)
|
||
|
||
def _visit_nested_function(
|
||
self,
|
||
node: ast.FunctionDef | ast.AsyncFunctionDef,
|
||
) -> None:
|
||
self._visit_definition_expressions(node)
|
||
self.nested_functions.append((node, dict(self._bindings)))
|
||
self._bindings[node.name] = _UNKNOWN_BINDING
|
||
|
||
def visit_FunctionDef(self, node: ast.FunctionDef) -> None:
|
||
self._visit_nested_function(node)
|
||
|
||
def visit_AsyncFunctionDef(self, node: ast.AsyncFunctionDef) -> None:
|
||
self._visit_nested_function(node)
|
||
|
||
def _visit_lambda_defaults(self, node: ast.Lambda) -> None:
|
||
for default in node.args.defaults:
|
||
self.visit(default)
|
||
for keyword_default in node.args.kw_defaults:
|
||
if keyword_default:
|
||
self.visit(keyword_default)
|
||
|
||
def visit_Lambda(self, node: ast.Lambda) -> None:
|
||
self._visit_lambda_defaults(node)
|
||
|
||
|
||
def _root_functions(
|
||
tree: ast.Module,
|
||
) -> Iterator[tuple[str, ast.AsyncFunctionDef]]:
|
||
"""产出模块顶层和类直接拥有的 async 入口。"""
|
||
for node in tree.body:
|
||
if isinstance(node, ast.AsyncFunctionDef):
|
||
yield node.name, node
|
||
elif isinstance(node, ast.ClassDef):
|
||
for method in node.body:
|
||
if isinstance(method, ast.AsyncFunctionDef):
|
||
yield f"{node.name}.{method.name}", method
|
||
|
||
|
||
def _scan_paths(root: Path, scan_roots: Sequence[str | Path]) -> Iterator[Path]:
|
||
"""按稳定顺序产出存在的扫描目标。"""
|
||
for scan_root in scan_roots:
|
||
target = root / scan_root
|
||
if target.is_file():
|
||
yield target
|
||
elif target.is_dir():
|
||
yield from sorted(target.rglob("*.py"))
|
||
|
||
|
||
def collect_async_blocking(
|
||
root: Path = PROJECT_ROOT,
|
||
scan_roots: Sequence[str | Path] = SCAN_ROOTS,
|
||
) -> dict[str, int]:
|
||
"""扫描关键目录并以文件、函数、调用名聚合存量次数。"""
|
||
debt: Counter[str] = Counter()
|
||
oper_methods = _load_oper_methods(root)
|
||
for path in _scan_paths(root, scan_roots):
|
||
tree = ast.parse(path.read_text(encoding="utf-8"), filename=str(path))
|
||
imports = _ImportCollector()
|
||
for statement in tree.body:
|
||
imports.visit(statement)
|
||
relative = path.relative_to(root).as_posix()
|
||
pending: list[
|
||
tuple[
|
||
str,
|
||
ast.FunctionDef | ast.AsyncFunctionDef,
|
||
dict[str, _Binding],
|
||
]
|
||
] = [
|
||
(qualname, function, imports.bindings)
|
||
for qualname, function in _root_functions(tree)
|
||
]
|
||
pending_index = 0
|
||
while pending_index < len(pending):
|
||
qualname, function, lexical_bindings = pending[pending_index]
|
||
pending_index += 1
|
||
is_async = isinstance(function, ast.AsyncFunctionDef)
|
||
visitor = _AsyncCallVisitor(
|
||
function,
|
||
lexical_bindings,
|
||
oper_methods,
|
||
record_calls=is_async,
|
||
)
|
||
for statement in function.body:
|
||
visitor.visit(statement)
|
||
if is_async:
|
||
for call_name, count in visitor.calls.items():
|
||
debt[f"{relative}:{qualname}:{call_name}"] += count
|
||
pending.extend(
|
||
(
|
||
f"{qualname}.{nested.name}",
|
||
nested,
|
||
bindings,
|
||
)
|
||
for nested, bindings in visitor.nested_functions
|
||
)
|
||
return dict(sorted(debt.items()))
|
||
|
||
|
||
def compare_async_blocking(
|
||
baseline: dict[str, int], current: dict[str, int]
|
||
) -> list[str]:
|
||
"""允许存量减少或删除，拒绝新增阻塞调用和调用次数增长。"""
|
||
problems = []
|
||
for entry, count in current.items():
|
||
previous = baseline.get(entry)
|
||
if previous is None:
|
||
problems.append(f"新增 async 阻塞调用：{entry} x{count}")
|
||
elif count > previous:
|
||
problems.append(f"async 阻塞调用增长：{entry} x{count}>{previous}")
|
||
return problems
|
||
|
||
|
||
def main() -> int:
|
||
"""执行 async 阻塞 baseline check 或显式 write。"""
|
||
parser = argparse.ArgumentParser(description=__doc__)
|
||
parser.add_argument("--write", action="store_true", help="写入当前阻塞债务")
|
||
parser.add_argument("--baseline", type=Path, default=DEFAULT_BASELINE)
|
||
args = parser.parse_args()
|
||
current = collect_async_blocking()
|
||
if args.write:
|
||
args.baseline.parent.mkdir(parents=True, exist_ok=True)
|
||
args.baseline.write_text(
|
||
json.dumps(current, ensure_ascii=False, indent=2, sort_keys=True) + "\n",
|
||
encoding="utf-8",
|
||
)
|
||
print(f"已写入 {args.baseline.relative_to(PROJECT_ROOT)}")
|
||
return 0
|
||
baseline = json.loads(args.baseline.read_text(encoding="utf-8"))
|
||
problems = compare_async_blocking(baseline, current)
|
||
if problems:
|
||
print("\n".join(problems))
|
||
return 1
|
||
print("async 阻塞调用 ratchet 通过")
|
||
return 0
|
||
|
||
|
||
if __name__ == "__main__":
|
||
raise SystemExit(main())
|